49806823 has 4 divisors (see below), whose sum is σ = 54334728. Its totient is φ = 45278920.

The previous prime is 49806811. The next prime is 49806839. The reversal of 49806823 is 32860894.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 49806823 - 2²¹ = 47709671 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49806853) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2263936 + ... + 2263957.

It is an arithmetic number, because the mean of its divisors is an integer number (13583682).

Almost surely, 2^49806823 is an apocalyptic number.

49806823 is a deficient number, since it is larger than the sum of its proper divisors (4527905).

49806823 is a wasteful number, since it uses less digits than its factorization.

49806823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4527904.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 49806823 is about 7057.3949159729. The cubic root of 49806823 is about 367.9280907659.

The spelling of 49806823 in words is "forty-nine million, eight hundred six thousand, eight hundred twenty-three".